heater

noun

heat·​er ˈhē-tər How to pronounce heater (audio)
1
: one that heats
especially : a device that imparts heat or holds something to be heated
2

Examples of heater in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Instead of storing away your bulky AC for the winter, get the Midea smart inverter air conditioner, which doubles as a small heater. Christopher Murray May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 30 July 2025 What compounds those issues is the fact that her Star Athletics teammate, Melissa Jefferson-Wooden, is currently on a heater, having won her last four races at the distance. Cory Mull, Forbes.com, 29 July 2025 Court records indicate Davis went on a heater — beginning with a $4.50 winning bet on the game that eventually turned into Davis betting the $5,000 maximum on spins as her winnings grew. Arpan Lobo, Freep.com, 23 July 2025 With the Cubs’ shortstop smoking a Carlos Rodón heater 98.4 mph, Judge ran in and laid out for an inning-ending catch. Gary Phillips, New York Daily News, 12 July 2025 See All Example Sentences for heater

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of heater was in the 15th century

Browse Nearby Words

Cite this Entry

“Heater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heater. Accessed 6 Aug. 2025.

Kids Definition

heater

noun
heat·​er ˈhēt-ər How to pronounce heater (audio)
: a device that heats or holds something to be heated

More from Merriam-Webster on heater

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!